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Abstract

In comparison with artificial insemination with fresh semen or short time stored semen, the results of artificial insemination after cryopreservation are not satisfactorily in poultry. Nevertheless, the interest of commercial breeders in cryopreservation is increasing. An increase in utilization of ...

Author(s)
Schramm, G. P.
Publisher
Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2008, 80, 2, pp 137-145
Abstract

The use of artificial insemination (AI) in poultry can be traced back until the beginning of the 20th century. The development of suitable methods to collect sperm as well as insemination, dilution and preservation of sperm have resulted to a useful and significant method in poultry breeding. This...

Author(s)
Schramm, G. P.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2005, 77, 2/3, pp 206-217
Abstract

Data on 1048 eggs from hens inseminated at 3- to 4-day intervals over 6 wk (group 1) and 758 eggs from hens inseminated at 7-day intervals over 4 wk (group 2) were analysed. The overall egg fertility and hatchability was 74.5 and 63.0% resp. for hens in group 1 vs. 55.2 and 43.5 in group 2, embryo...

Author(s)
Schramm, G. P.
Citation
Monatshefte für Veterinärmedizin, 1992, 47, 11, pp 599-602
Abstract

20 Muscovy ducks in single cages were inseminated at 14-day intervals over a period of 16 wk. The av. egg fertility was 63.2%, ranging from 35.1 to 84.3% for individual birds. The av. embryo mortality was 8.8%, ranging from 4.3% on day 8 after insemination to 25.0% on day 14. Laying intensity had...

Author(s)
Schramm, G. P.
Citation
Monatshefte für Veterinärmedizin, 1992, 47, 6, pp 341-344
Abstract

The authors' work on the use of the Blumberg poultry semen diluent, containing sodium glutamate, glucose and potassium acetate, is reviewed. After storage of semen diluted 1:1 in the medium for 6 h at 2°-5°C, insemination doses of 0.05 ml resulted in an egg fertility of 92.4% and hatchability of...

Author(s)
Schramm, G.-P.; Löhle, K.
Citation
Monatshefte für Veterinärmedizin, 1985, 40, 4, pp 135-138
Abstract

This review deals with the dilution, freezing, cryoprotection, thawing and post-thawing treatment of fowl and turkey semen and the effect of freezing on semen fertilizing ability. [For Pt. 1 see Archiv für Tierzucht (1993) 36, 431-442].

Author(s)
Hübner, R.; Löhle, K.; Schramm, G. P.
Citation
Archiv für Tierzucht, 1994, 37, 1, pp 77-87
Abstract

In a comparison of the Blumberg diluent with the Beltsville extender, semen stored for 6 h before use gave an egg fertility of 95.7 and 88.2% resp., and a hatchability of fertile eggs of 81.0 and 75.1%. When the Blumberg diluent was used with an insemination interval of 7 and 14 days, egg fertility ...

Author(s)
Schramm, G. P.
Citation
Monatshefte für Veterinärmedizin, 1986, 41, 13, pp 460-463
Abstract

For 293 ejaculates, semen volume averaged 1.04 ml, sperm concentration (X 106/ mu l) 1.69, sperm motility 57.5%, methylene blue reduction time 5.1 min, the percentage of abnormal spermatozoa 18.0, and pH 7.1. Insemination with 0.05 or 0.10 ml semen at 3- to 4-day intervals resulted in egg fertility ...

Author(s)
Schramm, G.-P.
Citation
Monatshefte fur Veterinarmedizin, 1982, 37, 15, pp 576-578
Abstract

At 22 wk of age, ♂♂ and ♀♀ were transferred from floor pens to cages. For cocks ejaculated 3 and 5 times per wk, ejaculate volume averaged 0.89 and 0.83 ml resp., sperm concentration (spermatocrit value) 12.0 and 12.5%, sperm motility 80.2 and 80.2%, methylene blue reduction time 2.0 and 1.7 min,...

Author(s)
Schramm, G. P.; Lampson, K.
Publisher
Sektion Tierproduktion und Veterinärmedizin der Karl-Marx-Universität, Leipzig, German Democratic Republic
Citation
31. Internationale Geflügelvortragstagung. Reproduktion von Geflügel. Leipzig, Dezember 1987., 1988, pp 148-153
Abstract

100 hybrid hens were inseminated at intervals of 2-3 days over a period of 4-6 wk with frozen semen diluted with ethylene glycol or dimethylacetamide (DMA). For 1740 and 1411 eggs in the 2 groups resp., egg fertility averaged 55.5 and 64.8%, and hatchability was 70.0 and 81.4% for fertilised eggs...

Author(s)
Hübner, R.; Schramm, G. P.
Citation
Monatshefte für Veterinärmedizin, 1988, 43, 8, pp 279-282